The growth of United States' cities and the development of industrial technology gave rise to a number of features of urban life not before seen in American history, which resulted in the increase of the factory production. ... Reflecting to the sentence wrote by Whitney to his father, "One man and a horse will do more than fifty men with the old machines"5, factories began to dominate urban areas, and forced the United States' economy to a new level. ...
Economic growth post world war created an affluent consumer society where the urban middle class and upper class had more purchasing power than before. ... Vacuum cleaners and washing machines meant women did not have to spend several hours carrying out burdensome household chores. ...